11840091 has 8 divisors (see below), whose sum is σ = 16331280. Its totient is φ = 7621152.

The previous prime is 11840071. The next prime is 11840107. The reversal of 11840091 is 19004811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11840091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11840011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67960 + ... + 68133.

It is an arithmetic number, because the mean of its divisors is an integer number (2041410).

Almost surely, 2^11840091 is an apocalyptic number.

11840091 is a deficient number, since it is larger than the sum of its proper divisors (4491189).

11840091 is a wasteful number, since it uses less digits than its factorization.

11840091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136125.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 11840091 is about 3440.9433299606. The cubic root of 11840091 is about 227.9213525293.

The spelling of 11840091 in words is "eleven million, eight hundred forty thousand, ninety-one".